T.R.
What if you did 70 Small gifts to show you care?
For example, the 70 lifesavers candies. And 70 buds of flowers on a bouquet (carnations are great for this!) A poem comprised of 70 words about her. Bake a batch of 70 cookies. 70 pennies for her thoughts. 70 phone calls throughout the year, just to connect. A list of 70 milestones she has made in her lifetime. A list of the #1 something (#1 song each year, #1 movie, etc.) for each of the 70 years she's been around
You can also mix/match that up with ideas from sites like this one - 50 ways to show you care
http://tinybuddha.com/blog/50-ways-to-show-you-care-witho...
full of small gift ideas that don't cost a lot (or anything)
Hope that helps, how great that you are trying to think out of the box & make it special for her! T.